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<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery对象和Dom对象之间的关系</title>
    <script type="text/javascript" src="/js/jquery-3.2.1.js"></script>
    <script type="text/javascript" src="/js/Objects.js"></script>
</head>
<body>
    <span>
        <div id="div1">div1的文本内容</div>
        <div id="div2">div2的文本内容</div>
        父dom的内容
    </span>

    <p id="p1">p1的内容</p>
</body>
</html>